He published the three-volume series Gudbrandsdalen gjennom tidene in cooperation with Sigurd Grieg.
Sigurd Grieg conducted an extensive investigation of the mound beginning in summer 1939.
Edvard Grieg | Sigurd | The Legend of Sigurd and Gudrún | Sigurd Pettersen | Nordahl Grieg | The Story of Sigurd the Volsung and the Fall of the Niblungs | Sigurd Lewerentz | Sigurd the Stout | Sigurd Syr | Sigurd Rushfeldt | Sigurd Grieg | Sigurd Roll | Sigurd Risting | Sigurd Ribbung | Sigurd Lucassen | Sigurd Hofmann | Sigurd Hoel | Sigurd Haakonsson | Sigurd Christiansen | Peer Gynt (Grieg) | Grieg Hall | Grieg Academy |